/**
 * @Description TODO
 * @Author hhy
 * @Date 2020/9/24 14:58
 */
public class PrintA implements A {
    @Override
    public void printA4() {
        System.out.println("A打印机开始打印A4纸");
    }

    @Override
    public void printBW() {
        System.out.println("颜色是黑白的");
    }
}
